Fluid experimental flow estimation based on an Optical-flow scheme
Thomas Corpetti
(1, 2)
,
Dominique Heitz
(3, 4)
,
G. Arroyo
(3, 5)
,
Etienne Mémin
(1)
,
A. Santa Cruz
(3)
Thomas Corpetti
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- Fonction : Auteur correspondant
- PersonId : 2112
- IdHAL : thomas-corpetti
- ORCID : 0000-0002-0257-138X
- IdRef : 067284396
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Dominique Heitz
- Fonction : Auteur
- PersonId : 5673
- IdHAL : dominique-heitz
- ORCID : 0000-0001-6295-2822
- IdRef : 08894719X
Résumé
We present in this paper a novel approach dedicated
to the measurement of velocity in fluid experimental
flows through image sequences. Unlike most of the
methods based on particle image velocimetry (PIV) approaches used in that context, the proposed technique is an extension of ‘‘optical-flow'' schemes used in the computer vision community, which includes a specific enhancement for fluid mechanics applications. The method we propose enables to provide accurate densemotion fields. It includes
an image based integrated version of the continuity
equation. This model is associated to a regularization
functional, which preserve divergence and vorticity blobs of the motion field. The method was applied on synthetic images and on real experiments carried out to allow a thorough comparison with a state-of-the-art PIV method in conditions of strong local free shear.
to the measurement of velocity in fluid experimental
flows through image sequences. Unlike most of the
methods based on particle image velocimetry (PIV) approaches used in that context, the proposed technique is an extension of ‘‘optical-flow'' schemes used in the computer vision community, which includes a specific enhancement for fluid mechanics applications. The method we propose enables to provide accurate densemotion fields. It includes
an image based integrated version of the continuity
equation. This model is associated to a regularization
functional, which preserve divergence and vorticity blobs of the motion field. The method was applied on synthetic images and on real experiments carried out to allow a thorough comparison with a state-of-the-art PIV method in conditions of strong local free shear.
Format du dépôt | Fichier |
---|---|
Type de dépôt | Article dans une revue |
Résumé |
en
We present in this paper a novel approach dedicated<br />to the measurement of velocity in fluid experimental<br />flows through image sequences. Unlike most of the<br />methods based on particle image velocimetry (PIV) approaches used in that context, the proposed technique is an extension of ‘‘optical-flow'' schemes used in the computer vision community, which includes a specific enhancement for fluid mechanics applications. The method we propose enables to provide accurate densemotion fields. It includes<br />an image based integrated version of the continuity<br />equation. This model is associated to a regularization<br />functional, which preserve divergence and vorticity blobs of the motion field. The method was applied on synthetic images and on real experiments carried out to allow a thorough comparison with a state-of-the-art PIV method in conditions of strong local free shear.
|
Titre |
en
Fluid experimental flow estimation based on an Optical-flow scheme
|
Auteur(s) |
Thomas Corpetti
1, 2
, Dominique Heitz
3, 4
, G. Arroyo
3, 5
, Etienne Mémin
1
, A. Santa Cruz
3
1
VISTA -
Vision spatio-temporelle et active
( 2542 )
- Campus de Beaulieu, 35042 Rennes cedex
- France
2
LETG - Rennes -
Littoral, Environnement, Télédétection, Géomatique
( 3177 )
- Maison de la Recherche Place du Recteur Henri Le Moal 35043 RENNES CEDEX
- France
3
CEMAGREF -
Centre national du machinisme agricole, du génie rural, des eaux et forêts
( 300005 )
- France
4
LEA -
Laboratoire d'Études Aérodynamiques
( 958 )
- Boulevard Pierre et Marie Curie, BP 30179, 86962 Futuroscope Cedex, France
- France
5
BIM -
Biomécanique et génie biomédical
( 953 )
- Département Génie Biologique UMR6600 Biomécanique Biomédical - BP 20529 60205 COMPIEGNE CEDEX
- France
|
Date de production/écriture |
2006-01-01
|
Page/Identifiant |
80-97
|
Audience |
Internationale
|
Public visé |
Scientifique
|
Sous-type de document pour les Articles |
Research article
|
Localisation géographique du document |
RE (03X/7971A)
|
Commentaire(s) |
|
Date de publication |
2006-01
|
Commentaire |
[Departement_IRSTEA]EA [TR1_IRSTEA]TEPSA / METFRI
[Departement_IRSTEA]EA [TR1_IRSTEA]TEPSA / METFRI http://www.uhb.fr/sc_sociales/Costel/publis_thomas_corpetti.html |
Langue du document |
Anglais
|
Nom de la revue |
|
Vulgarisation |
Non
|
Comité de lecture |
Oui
|
Volume |
40
|
Numéro |
1
|
Indexation contrôlée |
|
Domaine(s) |
|
Mots-clés |
en
Div–curl regularization, Continuity equation, Fluid motion measurement, Optical-flow, PIV
|
DOI | 10.1007/s00348-005-0048-y |
UT key WOS | 000233822600008 |
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